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How to Cut in Paint

Publish date
12th May 2025
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Let Harris Brushes teach you how to cut in paint and achieve a professional finish with ease and consult our one-stop guide today.

In this article

Those new to redecorating and DIY may well be thinking ‘what is cut in paint?’ and ‘how do I cut in paint correctly?’. To cut in paint is to paint around the edges of a room, a light switch, skirting board and more with high precision, creating a ‘frame’ that ensures the best possible finish for your home. However, mastering the process of cutting in paint can be more difficult than it sounds.

Discover our expert cut in paint techniques and learn how to paint the trim of a room successfully in this useful guide and ensure your next DIY project excels.

Step-by-step instructions

Use masking tape to keep the dust sheet in place.
Repair any damage to the wall.
Cutting in means using a paint brush to paint around the edges of the wall, do this in 1m sections.
how to cut in paint
how to cut in paint
how to cut in paint

FAQs

“Cutting in” with a paint brush refers to the process of painting the edges and corners of a wall, typically around trim, ceilings, or windows, with a brush before using a roller on the larger surface area. It’s done to create a clean, precise line where the wall meets other surfaces.

You should cut in paint before rolling the walls. This allows you to paint the edges and corners first, ensuring a more controlled and neat finish. When you roll afterward, the roller can blend seamlessly into the cut-in areas.

To prevent paint from bleeding under the tape…

  • Use painter’s tape specifically designed for clean lines.
  • Press the tape down firmly to seal the edges.
  • For added protection, paint over the tape with the wall colour before applying the main colour. This seals the tape and prevents the new colour from bleeding under.
  • Allow the “sealing” coat to dry before applying the final colour.

To avoid visible brush marks when using a cutting in brush…

  • Use a high-quality cutting in brush designed for the job, such as an angled sash brush.
  • Load the brush properly, make sure there’s not too much paint to avoid drips, but enough to cover the area.
  • Use long, smooth strokes to create even coverage.
  • Don’t overwork the paint once applied, let it settle without excessive brushing.
  • Work in sections to ensure the paint doesn’t dry too quickly before you can blend it.

You can cut in one day and roll the next, but ensure the cut-in areas are completely dry before rolling. However, it’s usually best to roll immediately after cutting in paint to blend more seamlessly and avoid visible lines or differences in texture.

The cut-in area should be around 2-3 inches wide, depending on your comfort level and the area you’re working with. This width ensures you can cover corners and edges efficiently without making the space look too cluttered or uneven.

Common mistakes to avoid include…

  • Not using enough painter’s tape or using low-quality tape.
  • Not sealing the edges of the tape properly to prevent bleeding.
  • Using too much paint on the brush, which can lead to drips and streaks.
  • Not blending the cut-in areas well with the rolled areas, causing lines or differences in texture.
  • Brushing too much – Once you apply paint, don’t keep brushing over the same area to avoid brush marks.

When it comes to understanding how to use a cutting in brush along ceilings there’s a few steps you can take to avoid anything going wrong. Firstly use painters tape along the ceiling edge, for more control, use an angled brush to reach the edges without overlapping onto the ceiling and paint slowly to ensure accuracy, always keeping your brush at a slight angle.

There’s a few different reasons why the cutting in paint can look different, this includes:

  • Different application methods: Brushes can leave more texture or absorb more paint than rollers, leading to subtle differences in sheen and colour.
  • Thickness of the paint: Brushes may apply thicker coats than rollers, which can cause a darker appearance.
  • Drying time: The cut-in areas might dry faster than the rolled areas, which can result in slight colour differences until everything is fully dry.

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